The high function returns the maximum (highest) value in a group of numbers represented by numeric expressions number1 ... numberN. The function ignores special values.
Return Value
The function returns the highest value, or default in the case that no valid values were passed.
Example
errmsg("Lowest value is %f",low(50,-123.45,1982.0605,20)); // displays -123.45
errmsg("Highest value is %f",high(50,-123.45,1982.0605,20)); // displays 1982.0605